PC3 Correct me if I'm wrong
Thread Starter
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Tourer
Joined: Feb 2006
Posts: 429
Likes: 1
From: Southampton, Pa
PC3 Correct me if I'm wrong
I've been comparing maps for my setup, Why are the maps for the setup with the stage 1 ECM set richer than the same setup but with the stock ECM. I know enough about EFI to work in them but the canned maps just don't seem right to me. I thought that the stage 1 ECM is richer than the stock to compensate for the aftermarket parts we put on (ie: V&H Big Radius and SE Air filter), if it is thenthe mapshouldn't have to be richer than the map for the stock ECM. Someone tell me if I'm wrong. As it is right now I'm starting out with a Zero map and going to make changes to get rid of the decell popping I have. I was planning on adding the settings I figure out to a canned map for my setup,but the bike runs good as is except for the decell pops.
Stellar HDF Member
Joined: Mar 2006
Posts: 2,395
Likes: 153
From: Utah
RE: PC3 Correct me if I'm wrong
Ummmm.... the stage 1 download must be changing something in the ECM that the PCIII doesn't take over, but I can't think what that might be unless it is altering a reading from one of the sensors. I don't know exactly how the PCIII relates to the stock ECM, but I would presume that it takes all of it's input readings from the ECM and sends out only timing and fuel changes, so if you have to change the readings from a sensor by applying some math to them, and that is done in the ecm, then the readings sent to the PCIII wouldn't be bone stock. I think there are some guys on the forum that know more intimately how mods are done to the ECM that can answer this... but the point I want to make is that I don't think that using an off the shelf map is worth it... and that everyone should get dyno work done. When you look at it that way, then the SERT and the PCIII start looking more alike... but I didn't have that figured out when I bought my PCIII.
I >was< able to get a better price for a used PCIII (+ dyno, as it turns out) than I would have for a SERT plus a HD Dealer dyno. That's my only consolation... but new to new, they are pretty equal in final cost if you agree that fine tuning is important.
C#
I >was< able to get a better price for a used PCIII (+ dyno, as it turns out) than I would have for a SERT plus a HD Dealer dyno. That's my only consolation... but new to new, they are pretty equal in final cost if you agree that fine tuning is important.
C#
Elite HDF Member
Joined: Jan 2006
Posts: 4,357
Likes: 11
From: The Lone Star State
RE: PC3 Correct me if I'm wrong
A PCIII for $269.00 (fuelmotousa)+ $200.00 Dyno Tune = $469.00
A SERT for $370.00 (Zanotti Motor) +$300 (Dealer) =$670.00
The cheapest I have seen a SERT and Dyno tune from a Dealer is $665.00 and that was a winter special.
$200.00 is still quite a difference for me.
A SERT for $370.00 (Zanotti Motor) +$300 (Dealer) =$670.00
The cheapest I have seen a SERT and Dyno tune from a Dealer is $665.00 and that was a winter special.
$200.00 is still quite a difference for me.
Thread Starter
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Tourer
Joined: Feb 2006
Posts: 429
Likes: 1
From: Southampton, Pa
RE: PC3 Correct me if I'm wrong
I've done some more checking and it looks likemost PC3 maps for the stage 1 ECM'sare richer than the stock ECM maps with the same setup. I have found a difference in the Ignition tables where they back the timing up 4* but that's in the 40 to 100% throttle range from 1500 to 2500 RPM range and this I understand, but I don't understand the richer fuel setting. I'mtryingto adjust my setup for fuel economy and A/F ratios rather than max HP and Torque. I may wind up combining both stock and stage 1 maps to give me a more even fuel curve.
Funny thing is I compared maps for the touring bikes and they were the opposite, they run richer on the stock than they do on the stage 1 ECM.
Funny thing is I compared maps for the touring bikes and they were the opposite, they run richer on the stock than they do on the stage 1 ECM.
Stellar HDF Member
Joined: Mar 2006
Posts: 2,395
Likes: 153
From: Utah
RE: PC3 Correct me if I'm wrong
ORIGINAL: WARG
A PCIII for $269.00 (fuelmotousa)+ $200.00 Dyno Tune = $469.00
A SERT for $370.00 (Zanotti Motor) +$300 (Dealer) =$670.00
The cheapest I have seen a SERT and Dyno tune from a Dealer is $665.00 and that was a winter special.
$200.00 is still quite a difference for me.
A PCIII for $269.00 (fuelmotousa)+ $200.00 Dyno Tune = $469.00
A SERT for $370.00 (Zanotti Motor) +$300 (Dealer) =$670.00
The cheapest I have seen a SERT and Dyno tune from a Dealer is $665.00 and that was a winter special.
$200.00 is still quite a difference for me.
My HD dealer would have done the SERT tuning for $150 with a purchase price of $400 for the SERT, I believe.
Those both cost the same if I'm doing my math properly.
I got my PCIII for $220 on Ebay. I didn't originally plan to have the bike dyno'd, just like many others on the forum. I wasn't happy with an off the shelf map, however.
C#
Cruiser
Joined: Nov 2006
Posts: 188
Likes: 0
From: Milton Florida
RE: PC3 Correct me if I'm wrong
If I have it dyno, will they save that map and give it to me..
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Stellar HDF Member
Joined: Mar 2006
Posts: 2,395
Likes: 153
From: Utah
RE: PC3 Correct me if I'm wrong
Depends upon the guy, I would guess.
I was able to get a copy of mine. I said that I wanted it in case my PCIII ever failed and I was no longer in the area. He gladly gave it to me on a thumb drive.
C#
I was able to get a copy of mine. I said that I wanted it in case my PCIII ever failed and I was no longer in the area. He gladly gave it to me on a thumb drive.
C#
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Tourer
Joined: Oct 2006
Posts: 422
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From:
RE: PC3 Correct me if I'm wrong
ORIGINAL: WARG
A PCIII for $269.00 (fuelmotousa)+ $200.00 Dyno Tune = $469.00
A SERT for $370.00 (Zanotti Motor) +$300 (Dealer) =$670.00
The cheapest I have seen a SERT and Dyno tune from a Dealer is $665.00 and that was a winter special.
$200.00 is still quite a difference for me.
A PCIII for $269.00 (fuelmotousa)+ $200.00 Dyno Tune = $469.00
A SERT for $370.00 (Zanotti Motor) +$300 (Dealer) =$670.00
The cheapest I have seen a SERT and Dyno tune from a Dealer is $665.00 and that was a winter special.
$200.00 is still quite a difference for me.
